Form4insider filings, from the source

SEC Form 4 · accession 0001919175-26-000008

Koppers Holdings Inc. · KOP

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Stephen G Lucas
Officer — SVP, Culture and Engagement
Period of report
Aug 12, 2026
Accepted (ET)
Aug 13, 2026 · 5:11 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001315257

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Aug 12, 2026S1,308$44.55D34,345D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses